[Electron microscopic studies on long-term perfused dog kidneys]

In the applied preservation technique of kidneys used the fine-structural changes on main epithelial cells and glomeruli are relatively insignificant and appear reversible or reparable after a storage preservation up to 4 hours and permanent perfusion of 24 hours. After a storage preservation of 10 hours and an additional permanent perfusion of 24 hours and after a renal permanent perfusion during 48 hours compared to it most frequently irreversible damages in form of dystrophies and necroses on tubuli and glomeruli are the result, so that the conservative condition of the organ can no more be regarded as optimal. Such kidneys are certainly only conditionedly suited for a transplantation.